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POSITIVE SHUTTLE MOTION FOR LOOMS.

No. 332,217. PatentedDec. 8, 1885.

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CLARENCE S. STROVBRIDGE, OF CORTLAND, NEW YORK.

POSITIVE SHUTTLE-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 332,217, dated December8, 1885.

Application filed December 13, 1884. Serial No. 150,279. (No model.)

To all whom it may concern.-

Be it known that I, CLARENCE S. Srnow- BRIDGE, of Cortland, in thecounty of Cortland and State of New York, have invented certain new anduseful Improvements in Positive Shuttle-Motions for Looms, of which thefollowing is a specification.

My invention relates to looms for weaving wire fabrics and for likework, in which the shuttle is transferred from one carrying or actuatingarm to another, and is drawn for ward by a positive action.

The invention consists in a novel construction of the shuttle andactuating-arms, and particularly in the construction of the catch orlocking device by which the shuttle is connected with and disconnectedfrom the carrying-arms alternately.

In the drawings annexed, Figure 1 represents the shuttle and actuatingmechanism in elevation. Fig. 2 is a bottom face view of the shuttle andportions of the carrying-arms. Fig. 3 is a view showing the shell of theshuttle and end of one of the carrying-arms in section, and theremaining portions of the shuttle and end of the other carrying-arm inelevation. Fig. 4 is a perspective view of the end of one of thecarrier-arms.

The mechanism for moving or actuating the shuttle-carrying arms may beof any simple or common construction, the present invention relatingsolely to the means of connecting and disconnecting the shuttle with andfrom the carrier-arms, which will now be explained in detail inconnection with the drawings, in which A indicates the shuttle, and B Cthe actuating or carrying arms, which in practice are suitably supportedand guided, connected by links a to upright levers D, pivoted near theirlower ends, as indicated at b, and having their lower ends extended intogrooved cams E, secured upon a rotary shaft, F. The rotation of thisshaft and its cams E, the grooves of which are suitably formed, impartsvibratory movement to the levers D, and through them to the actuating orcarrying arms B C to the extent and at the times required.

The shuttle A consists of a hollow shell, enlarged or bridged outward atits middle on the upper and lower sides to receive the bobbin G, whichis formed with ahollow axle, to receive center pins or journals carriedby the shuttle, as usual, one of said journals being formed upon the endof aspringarm, H, and extending inward through an opening in the side ofthe shuttle, as shown.

I indicates a friction or tension-regulating spring, secured at one endto the shuttle-body, and bearing at its other end upon the bobbin orupon the wire or other material wound thereon.

Both ends of the shuttle are made polygonal in form, preferably squareand hollow, as shown in Fig. 3, to receive the ends of the actuating orcarrying arms B C,'which latter are pointed or tapered to insure theirready entrance into the ends of the shuttle.

J indicates a spring-bar, pivoted at its midlength upon one of thejournals 0 of the bobbin, passing outward through the slots or openings(Z in the sloping walls, connecting the middle and the end portions ofthe shuttle, and finally bent inward through slots or openings e, formedin the hollow ends of the shuttle, as shown in Figs. 2 and 3, the endsfprojecting a short distance into the interior of said hollow ends, asshown in Fig. 3. The slots or openings d and e are of such length as topermit a free play of the inwardly-turned endsf nearly the entire widthof one face of the end portions of the shuttle, for a purpose presentlyexplained; and the body of the bar is made sufficiently flexible topermit the ends f to be pressed back flush with the inner faces of theshuttle-walls by a moderate pressure from within the shuttle. The ends fof the springbar J thus form two spring-catches, which engagealternately with one or other of the actuating-bars, the connection withone and disconnection from the other being effected by a rocking orswinging motion of the spring bar or lever J upon its pivot,whichcarries one of its endsf into and the other end f out of a notch orrecessin the respective carrying-arms B C.

By referring now to Figs. 2, 3, and 4 this mode of locking and unlockingwill be better understood. The free ends of the actuating or carryingarms B C are arranged in line with and opposite to each other, as shownin Figs. 1 and 3, and each is formed with a recess or depression,extending transversely across the face, as in Figs. 2 and 4.

Two grooves, h

bottom of the recess up to the face of saidv arm, and the groovet'running obliquely to the axis of the arm, and being of less depth thanthe recess 9, thus producing a square shoulder 10 j, across the innerend of said groove and across the space between the two grooves. Fromthis construction it follows that if the bent end f of the spring-arm Jenter the groove iand move along the same to its rear or inner end thehook or bent end f willspring into recess 9 and lock against shoulder 9,thereby firmly connecting the shuttle and the carryingarm. At the sametime the hook or bent end f, in traversing groove 43 and thus movingobliquely across the face of the arm B or 0, causes the lever orspring-armJ to rock upon its pivot and its other hook or bent end totraverse the recess 9 of the other carryingarms, and thus to swing outfrom behind the shoulderj into line with the groove 71, through which itmay freely pass out, and thus disconnect the shuttle from onecarrying-arm in the act of connecting with the other. Stops k limit theentrance of arms B and G into the shuttle. The arms B O alternatelyapproach and reccde from each other, and through the instrumentality ofthe spring arm or lever J the shuttle is transferred from one to theother.

The spring-arm J can be placed wholly within the shuttle; but thearrangement shown 3 5 is preferred.

Having thus described my invention,what I claim is- 1. Theherein-described shuttle, consisting of a shell having hollow ends, andhaving an elastic bar pivoted within the body of the shuttle, and havingits free ends bent inward and extending through slots in the walls ofthe hollow ends,whereby said free ends of the bar are adapted to rideinto and swing out of en- 5 gagement with the actuating or carrying armsof a loom, substantially as explained.

2. The con1bination,with a shuttle body or shell having hollow ends andprovided with slots d e, of aspringbar, J, pivoted to the shell 0 at apoint between its ends, extending through the slots d, and having itsends bent inward through slots e and projecting into the hollow ends,substantially as shown and described.

3. The combination, with carrying-arms B 0, each provided withtransverse recess 9, grooves h t, and shoulder j, of means forreciprocating said arms B C, and shuttle A, provided with pivotedelastic bar J, havinginwardly-turned ends extending into the hollow endsof the shuttle, substantially as shown.

CLARENCE S. STROWBRIDGE.

Witnesses:

J. S. BULL, A. It. PEOK.

